[PATCH v1 1/1] usb: gadget: Use correct endianness of the wLength field for WebUSB

Andy Shevchenko
2023-03-13T15:44:57Z

WebUSB code uses wLength directly without proper endianness conversion.
Update it to use already prepared temporary variable w_length instead.

Fixes: 93c473948c58 ("usb: gadget: add WebUSB landing page support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/usb/gadget/composite.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index fa7dd6cf014d..5377d873c08e 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -2079,10 +2079,9 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
sizeof(url_descriptor->URL)
- WEBUSB_URL_DESCRIPTOR_HEADER_LENGTH + landing_page_offset);

- if (ctrl->wLength < WEBUSB_URL_DESCRIPTOR_HEADER_LENGTH
- + landing_page_length)
- landing_page_length = ctrl->wLength
- - WEBUSB_URL_DESCRIPTOR_HEADER_LENGTH + landing_page_offset;
+ if (w_length < WEBUSB_URL_DESCRIPTOR_HEADER_LENGTH + landing_page_length)
+ landing_page_length = w_length
+ - WEBUSB_URL_DESCRIPTOR_HEADER_LENGTH + landing_page_offset;

memcpy(url_descriptor->URL,
cdev->landing_page + landing_page_offset,
--
2.39.2